Download Stock doc - Non-purple Yellow-green.p65

Wisconsin Fast Plants
TM
Seed Stock Profile
Non-Purple Stem,
Yellow-Green Leaf
15 cm
Two single, recessive traits:
anl/anl and ygr/ygr
This stock has two recessive mutant traits:
non-purple stem and yellow-green leaf.
The plants do not express any purple
pigment (anthocyanin), and the plants
appear a clear, yellow-green color. By
comparison, Standard Wisconsin Fast
PlantsTM are a deeper, more intense
green, with purple undertones on the
hypocotyls, stems, leaf tips, and
hydathodes.
Both phenotypes are conditioned by a
single, recessive gene (anl and ygr). In
the homozygous, recessive condition
(anl/anl, ygr/ygr), the plants appear to
be a clear, yellow-green color.
0 cm
7-day-old plant
Non-Purple,
Yellow-Green
(anl/anl, ygr/ygr)
•
•
Length of life cycle: 35-45 days
Days to flowering: 15
Average plant height at day 15: 15 cm
15-day-old plant
Non-Purple,
Yellow-Green
(anl/anl, ygr/ygr)
Growing Tips
24-hour fluorescent light, water, and
fertilizer are essential for Wisconsin Fast
PlantsTM. Refer to Growing Instructions
for more details.
Prior experience growing Standard
WIsconsin Fast Plants TM is useful for
comparison with Non-Purple Stem,
Yellow-Green Leaf plants.
Plant Color and Seed Production
Objective:
To explore the effect of yellow-green leaf color on seed
production in Wisconsin Fast PlantsTM
Time Required: 40-45 days (Most days require little or no activity.)
Extra Seed Needed: Seeds of Standard Wisconsin Fast PlantsTM
Procedure:
Predict if the yellow-green leaf color has an effect on seed production.
2. Think about what you are going to measure.
Ideas: number of seeds per plant, size of seeds, color of seeds, germination
rates of seeds.
3. Plant several seeds of Wisconsin Fast PlantsTM (both Non-Purple Stem,
Yellow-Green Leaf and Standard) following the Growing Instructions .
Tend the plants throughout their life cycle. Pollinate on days 15-17, then
terminate any
unpollinated buds
that appear after day
17.
4. When the plants are
brown and crispy,
harvest the seeds
(days 35-45).
5. Observe the seeds,
and record the
appropriate
measurements.
6. How did the seeds
produced by Non-Purple
Stem, Yellow-Green plants
compare to Standard plants?
Describe your observations.
Wisconsin Fast PlantsTM Seed Stocks Available:
Standard • Purple Stem, Hairy • Non-Purple Stem, Hairless
Non-purple Stem, Yellow-Green Leaf • Yellow-Green Leaf • Petite
Rosette-Dwarf • Tall Plant • Variegated • F1 and F2 Genetic Stocks
To order Wisconsin Fast PlantsTM materials and seeds:
Carolina Biological Supply Company, 2700 York Road, Burlington, NC 27215 1-800-334-5551
Ordering info: www.carolina.com/fastplants
Activity ideas: www.fastplants.org
Written by Wisconsin Fast Plants Program 2001. Layout by Sarah Lauffer. Color art by Alison Schroeer. Line art by Amy Kelley.
1.